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Finding the Fourth Proportional to 58,373.92, 87,563.44 and 21,417.76

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Solution

The fourth proportional to 58,373.92, 87,563.44 and 21,417.76 is: 32,127.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,373.92 : 87,563.44 = 21,417.76 : x
  2. Step 2: Convert to fraction form
    58,373.92/87,563.44 = 21,417.76/x
  3. Step 3: Cross multiply
    58,373.92x = 87,563.44 × 21,417.76
  4. Step 4: Simplify right side
    58,373.92x = 1,875,412,742.69
  5. Step 5: Solve for x
    x = 1,875,412,742.69/58,373.92
  6. Step 6: Final answer
    x = 32,127.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.